Island



J. H. GARDNER. GOOKBB.

Patented Oct. 6, 1891.

(No Model.)

l NVE NTCI Bu mi Lin.

John EL xcmsx- ANrTEn STATES PATENT OFFICE.

JOHN H. GARDNER, OE PROVIDENCE, RHODE ISLAND.

COOKER.

SEECIFICATION forming part o1" Letters Patent No. 460,860, dated October 6, 1891.

Application filed January 26,1891. Serial No. 379,123. (No model.)

To all whom, it rit/ty concern.-

le 1t known that I, JOHN II. GARDNER, a citizen of the United States, residing at Providence, in the county of Providence and State of Rhode Island, have invented certain new and useful Improvements in Cookers; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters of reference marked thereon, which form a part of this specification.

My invention has relation to portable cookingapparatus adapted to be employed for culinary purposes; and it consists, essentially, in the combination of a suitably-supported water 'tank or condenserprovided with a perforated central vertical liue, perforated cover for the condenser, arranged to support ket tles or other vessels during the cooking operation, a cover adapted to inclose said vessel, thus forming when in use a heated chamber, a supported inner fine arranged to conduct the heated gases upwardly into the cookingchamber, and a burning lamp or other suitable generator of heat, all as will be more fully hereinafter set forth and claimed.

I am well aware that portablel oil and gas stoves are commonly used for culinary purposes, &c. Therefore I make no claim to such, broadly. The object I have in view is to produce a more efficient cooker than heretofore made, and one in which the consumption of fuel is greatly reduced. By means of my improvement the water-tank, ttc., automatically performs the functions of a condenser of the steam and vapor. It arrests the gases and odors to a considerable extent, andalso serves as a ventilator for the cooking-charnber above.

Another ad vantage of myinvention is that the entire apparatus may be conveniently carried. in a box. or chest, thus forming a camp outfit; The lampitself maybe used both for cooking and illuminating purposes at the same time, the cooker meanwhile being supported by and extending through an aperture formed in the box.

In the appended sheet ot' drawings, Figure l is aperspective view of a box or chest containing the cooking outfit complete. Fig. 2 is a vertical sectional view of the box open, showing the cooker in position as in use. Fig. 3 is an enlarged vertical central sectional view showing the apparatus detached from the box; and Figs. l, 5, and 6 are similar sectional views of the upper portion of the apparatus, showing slightchanges in the manner of constructing and using it..

Again referring to the drawings, A indicates my improved cooker complete, the same con-V sisting, substantially, of a lamp l or othersuit-v able hea'tgenerator, a supported center flue d, a supported annular condenser c, loosely surrounding the flue, a heating or cooking chamber or cover 7i, resting upon the condenser, and a perforated plate or cover d, interposed between the said chamber and condenser. The plate is further provided with legsfor other suitable means for supporting t-he several vessels or kettles k generally used in culinary operations.

The entire apparatus may be made of sheet metal, as tin, thereby reducing the weight and cost. The center draft-Hue d is supported by wires vto2 or in any other suitable manner, its upper portion extending through the cover d, the opposite or lower portion n' being inclined or funnelshaped. The due is made so as to readily receive a glass chimney nz of an ordinary oil-lamp l. (See Eig. 3.) Surrounding the upper or cylindrical part of the flue ctv is a tank or condenser c, preferably annular in form. The inner or central walls of the condenser extend upwardly and are provided with a series of openings c, located above the water level or overiiow cbut below the corresponding end of the center flue. The inner diameter of the condenser exceeds the diameter of the flue a, thereby when in use forming an annular space l), which I term an outer, or return flue. The outer p0rtion of the condenser extends upwardly in the form of an enlarged circular iiange c3, adapted to receive and support the various covers or ovens 7L, soon to be described. The

condenser is further provided with a loose annular plate or cover (l, having inclined sides, its outer edge being perforated, as at d'. A faucet c furnishes means for readily drawing olf the water lzu as it becomes hot, if de sired. Removable legs lf3 may be employed IOO to support the apparatus when used independently of the chest p. To the cover or plate d is attached, as before stated, an open support f, having a suitable height. It' desired, the walls ofthe outer ue b may be eX- tended downwardly, as shown by dotted lines e2, Fig. 3. I nd, however,that the practical results are substantially the same when it is omitted.

The cooking chamber or oven is produced by the application of the inverted cover 71. These covers may vary in height, as indicated, and may have single or double walls, the latter being represented in Fig. 3. The covers h are provided with center openings fitted with removable caps h2, or aventilatingdamper h', Fig. 3, may be employed.

For certain purposes, as in boiling meats, vegetables, &c., and requiring a deep vessel 7c, I provide an extension-collar h3. (See Fig. 6.) Again, as in baking'bread, &c. I preferably use a defiector t, substantially as shown inrFig. 5. This acts to distribute the heat and also prevents the bread from being burned on the bottom.

For camp use the entire outfit may be packed and conveniently carried in a box or chestp. In such case I provide one of its sides with anA opening p', (beingclosed when not in use,) through which the condenser c extends and rests. (See Fig. 2.) The hinged cover p2 of the box may be supported by legs or props p3, thereby producing a convenient table. When thus mounted, the light from the burning lamp maybe further utilized by means of a reflector r while the lamp is being used for cooking purposes.

The action of the apparatus may be stated, briefly, as follows: Assuming that the several parts are mounted and arranged substantially as represented by Fig. 3, the heat, &c.,passes upwardly from the center flue aiuto the cooking-chamber h, the damper h meanwhile being more or less open, as desired. The heat then passes downwardly through the openings d (see arrows) into the condenser, thence across the waters surface, through the openings e, into the outer or return iiue h, and escapes below the condenser. The vapor,

- steam, and odors carried by the heated current of air into the condenser are practically condensed or absorbed by the water. The lwater also serves to temper the heat in the oven. In case the water becomes too hot, it may be readily drawn off by the faucet c and replaced by'cold water.

By means otl my improvement it will be seen that it is practically impossible for water to accidentallycome in contactwith the heated chimney m, either from the cooking-chamber Vor condenser.

I would state that a burning gas-j et or other equivalent heating means may be employed in lieu of theflamp Z without departing from the spirit of my invention.

I claim as my inventionl. As an improved article of manufacture, a portable cooking apparatus provided with a chimney or' central flue, a cooking-oven on top surmounting and communicating with said fine, a water-holding condenser located below and communicating with the cookingchamber, an outer or return iue located between the central flue and condenser and communicating with the latter through perforations formed in' its wall, anda lamp or other suitable generator of heat, all combined and'adapted for operation substantially as hereinbefore described.

2. A cooking utensil or apparatus ot` the class hereinbefore described, having a central iiue through which the heat to be utilized passes, an apertured water-holding tank or condenser loosely surrounding said lue and.

also forming an outer or return flue, and a removable top or cooking chamber surmounting the whole, all constructed and arranged whereby the heated gases, dto., pass upwardly into the cooking-chamber, thence downwardly into the condenser, and over the waters su rface into the said return fine, through perforations formed in the condenser-wall, and finally escape into the air, substantially as described.

3. In a cooking apparatus, the combination, with the mounted heating or cooking oven and means for conducting heat thereto, of a condenser arranged below the oven, a perforated cover interposed between the oven and condenser, and an outer flue communicating with the condenser by means of perforations formed'in its wall, throughwhich the waste gases, dto., escape from the condenser into the outer air, substantially as hereinbefore described.

4. Acooking apparatus having an apertured water-holding condenser communicating with the cooking-chamber above and interposed between the latter and the outer or exit flue, for the purpose hereinbefore set forth.

5. The cooking apparatus substantially as hereinbet'ore described, consisting of a cenan annular water holding apertured condenser surrounding said iue, a ventilated oven or cooking-chamber surmounting the condenser and communicating therewith, and a cover interposed between the chamber and condenser,provided withasupport for the several vessels orkettles employed in cooking.

In testimony whereof I have aiiixed my sig nature in presence of two witnesses.

JOHN H. GARDNER.

Vitnesses: .i Y

CHARLES I-IANNIGAN, GEO. H. REMINGTON.

IIO

tral flue, through which the heat first passes.VV Y 

